9.5 Communication Methods
115
9
Command execution time indicates the time for analyzing and processing long form com-
mands.
However, the command execution time for commands with data is the time described accord-
ing to the data format specified in the <data portion>, and for query commands it is the time
when the header is ON.
• Display delays may occur depending on the frequency of communication processes and
process contents.
• All commands except
TRG and :INT are processed sequentially.
• In communications with the controller, time must be added for data transmission. GP-IB
transfer time depends on the controller.
The time for RS-232C transfers involving a total of 10 bits (the start bit is 1, data length is 8,
no parity, stop bit is 1) is shown below.
9600 bps: approximately 960 characters/s
• Wait until measurements stabilize after a change before using a setting command.
An error occurs when messages are executed in the following cases:
• Command Error
When message syntax (spelling) is invalid. When the data format in a command or query is
invalid.
• Query Error
When the response message exceeds 64 bytes
• Execution Error
When invalid character or numeric data is present
Command Execution Time
Command Execution time (except communication time)
RST
200 ms or less
:FUNCtion
:RESistance:RANGe
:LPResistance:RANGe
:SPEEd
:SYSTem:CALibration
:RESistance:APERture
:LPResistance:APERture
:RESistance:NPLCycles
:LPResistance:NPLCycles
150 ms or less
:ADJust?
2 s or less
:FETCh?
3 ms or less
:READ?
Measurement time + 3 ms or less
:SYSTem:BACKup
200 ms or less
TST?
1s or less
Commands other than those above 10 ms or less
Errors During Communications
To Next Page
Loading...
